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Placer Deposits of Alaska by Edward H. Cobb (USGS)
1973 USGS Bulletin 1374, 14.97 MB pdf file, 219 pages
An inventory of the placer mines and prospects of Alaska, their history and geologic setting.
Placer Deposits of Alaska by Edward H. Cobb (USGS)
1973 USGS Bulletin 1374, 14.97 MB pdf file, 219 pages
An inventory of the placer mines and prospects of Alaska, their history and geologic setting.